Electric shaver casing



FIG. 1 is a front elevational view of an electric shaver casing showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a longitudinal section taken on the center line VII-VII' of FIG. 1. 

The ornamental design for an electric shaver casing, substantially as shown and described. 